Hot air effective utilization mechanism of glass annealing kiln

Abstract

The utility model relates to the technical field of heat energy recovery of glass annealing kilns, in particular to an effective hot air utilization mechanism of a glass annealing kiln, which comprises a heat recovery component, a water-gas separation component and a hot air collection component, a hot air collecting assembly is arranged at the front end of the heat recovery assembly; and a water-gas separation assembly is arranged at the upper end of the heat recovery assembly. Heat in hot air is absorbed through the fin heat exchange pipes of the heat recovery assembly, at the moment, a large amount of cold water is injected into the fin heat exchange pipes from the water passing pipe bases below the fin heat exchange pipes, and due to the fact that the heat in the fin heat exchange pipes is absorbed by water, the hot air waste heat exchange function is achieved; hot water and high-temperature gas in the fin heat exchange pipes enter the hot water backflow pipe to be gathered and then enter the gas-liquid separation tank along with water flow from bottom to top, and due to the fact that the internal size of the gas-liquid separation tank is large, the hot water and the high-temperature gas are separated; and the hot air waste heat recycling efficiency of the glass annealing kiln and the types of heat energy storage media are greatly improved.

Description

Effective utilization mechanism of hot air in glass annealing furnace Technical Field

[0001] This utility model relates to the field of heat energy recovery technology for glass annealing furnaces, and in particular to a mechanism for the effective utilization of hot air in glass annealing furnaces. Background Technology

[0002] In the glass production process, the annealing furnace is a key thermal equipment. Its function is to gradually cool the formed glass according to specific annealing process requirements to eliminate internal stress and ensure the quality and performance of the glass. With the development of the glass industry, higher requirements have been placed on the performance and efficiency of the annealing furnace.

[0003] Currently, many existing glass annealing furnaces suffer from low heat recovery efficiency. Glass releases a large amount of heat during annealing, and the exhaust heat from the furnace is dispersed, making collection difficult. Moreover, the average temperature of the exhaust heat is only around 250°C, resulting in low thermal quality. This makes it difficult for most glass factories to efficiently recover and utilize the heat. This heat is either directly discharged into the atmosphere or simply used to heat raw materials, thus wasting valuable thermal energy. At the same time, poor water-gas separation within the annealing furnace also leads to a series of energy consumption problems. During the cooling stage of glass annealing, high-temperature steam is inevitably generated when cooling water exchanges heat with the heat exchange equipment. Due to the lack of an effective water-gas separation mechanism, a large amount of gas occupies space, hindering the heat exchange contact surface between liquid water and the heat exchange equipment, reducing the efficiency of liquid water in absorbing heat, which further increases the waste of thermal energy during the heat exchange process. Summary of the Invention

[0004] In order to overcome the problems of existing glass annealing furnaces, which have low heat exchange and recovery efficiency and poor water-gas separation, resulting in a large amount of heat energy not being effectively extracted and utilized, and the gas reducing the efficiency of liquid water in absorbing heat, causing energy waste and increasing energy consumption costs in the production process, this utility model provides a mechanism for effectively utilizing hot air in glass annealing furnaces.

[0005] The technical solution is as follows: A mechanism for effectively utilizing hot air in a glass annealing furnace includes a heat recovery component, a water-gas separation component, and a hot air collection component; a hot air collection component is installed at the front end of the heat recovery component; a water-gas separation component is installed at the upper end of the heat recovery component; the heat recovery component includes a frame, finned heat exchange tubes, a water pipe base, and a hot water return pipe; the water-gas separation component includes a gas-liquid separator, a high-temperature gas discharge valve, and a hot water discharge valve; the hot air collection component includes a hot air collection hood and a high-temperature resistant fan.

[0006] Furthermore, the frame is equipped with finned heat exchange tubes; both the upper and lower ends of the finned heat exchange tubes are equipped with water pipe bases, and the water pipe bases are connected to the internal pipelines of the finned heat exchange tubes.

[0007] Furthermore, a hot water return pipe is installed at the upper end of the water pipe base, and the hot water return pipe is connected to the water pipe base pipe.

[0008] Furthermore, a gas-liquid separator is installed at the upper end of the frame, and the gas-liquid separator is connected to the hot water return pipe via a pipeline.

[0009] Furthermore, a cold water inlet valve is installed on one side of the lower water pipe base.

[0010] Furthermore, a hot air collection hood is provided at the front of the frame, and the hot air collection hood is fixedly sealed to the front end face of the frame; a high-temperature resistant fan is provided inside the front end face of the hot air collection hood.

[0011] Furthermore, a high-temperature gas discharge valve is provided on one side of the gas-liquid separator; a hot water discharge valve is provided below the high-temperature gas discharge valve, and both the high-temperature gas discharge valve and the hot water discharge valve are connected to the interior of the gas-liquid separator.

[0012] The beneficial effects are as follows: This utility model absorbs heat from the hot air through the finned heat exchange tubes of the heat recovery component. At this time, a large amount of cold water is injected into the interior of the finned heat exchange tubes from the water pipe base below. Since the water absorbs the heat in the finned heat exchange tubes, the function of hot air waste heat exchange is realized. The hot water and high-temperature gas in the finned heat exchange tubes enter the hot water return pipe and then enter the interior of the gas-liquid separator along with the water flow from bottom to top. Since the internal volume of the gas-liquid separator is large, the hot water and high-temperature gas are separated. The high-temperature gas is discharged to the outside through the high-temperature gas discharge valve for reuse, while the hot water discharge valve discharges the hot water in the lower layer for reuse, which greatly improves the efficiency of hot air waste heat recovery and reuse in glass annealing furnaces.

[0013] By setting up a hot air collection component, a high-temperature resistant fan draws hot air from the glass annealing furnace into and out of the hot air collection hood, thereby effectively improving the heat collection efficiency and concentrating the hot air onto the finned heat exchange tubes to improve waste heat recovery efficiency. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 is a side view of the overall three-dimensional structure of this utility model;

[0016] Figure 3 is a three-dimensional cross-sectional view of the present invention.

[0017] Figure 4 is a partial three-dimensional structural diagram of the finned heat exchanger tube of this utility model;

[0018] Figure 5 is a three-dimensional structural diagram of the water-air separation component of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Heat recovery assembly; 2. Water-gas separation assembly; 3. Hot air collection assembly; 101. Frame; 102. Finned heat exchange tube; 103. Water pipe base; 104. Hot water return pipe; 201. Gas-liquid separator; 202. High-temperature gas discharge valve; 203. Hot water discharge valve; 301. Hot air collection hood; 302. High-temperature resistant fan. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] As shown in Figures 1-5, the effective utilization mechanism for hot air in a glass annealing furnace includes a heat recovery component 1, a water-gas separation component 2, and a hot air collection component 3. The hot air collection component 3 is located at the front end of the heat recovery component 1, and the water-gas separation component 2 is located at the upper end of the heat recovery component 1. The heat recovery component 1 includes a frame 101, a finned heat exchange tube 102, a water pipe base 103, and a hot water return pipe 104. The water-gas separation component 2 includes a gas-liquid separator 201, a high-temperature gas discharge valve 202, and a hot water discharge valve 203. The hot air collection component 3 includes a hot air collection hood 301 and a high-temperature resistant fan 302.

[0023] The frame 101 is equipped with a finned heat exchange tube 102; both the upper and lower ends of the finned heat exchange tube 102 are equipped with water pipe bases 103, and the water pipe bases 103 are connected to the internal pipelines of the finned heat exchange tube 102.

[0024] A hot water return pipe 104 is provided at the upper end of the water pipe base 103 above, and the hot water return pipe 104 is connected to the water pipe base 103 above.

[0025] A gas-liquid separator 201 is provided at the upper end of the frame 101, and the gas-liquid separator 201 is connected to the hot water return pipe 104 by a pipeline.

[0026] A cold water inlet valve is installed on one side of the water pipe base 103 below.

[0027] A high-temperature gas discharge valve 202 is provided on one side of the gas-liquid separator 201; a hot water discharge valve 203 is provided below the high-temperature gas discharge valve 202, and both the high-temperature gas discharge valve 202 and the hot water discharge valve 203 are connected to the interior of the gas-liquid separator 201.

[0028] The finned heat exchange tubes 102 of the heat recovery assembly 1 absorb the heat from the hot air. At this time, a large amount of cold water is injected into the interior of the finned heat exchange tubes 102 from the water pipe base 103 below. As the water absorbs the heat in the finned heat exchange tubes 102, the waste heat of the hot air is exchanged. The hot water and high-temperature gas in the finned heat exchange tubes 102 enter the hot water return pipe 104 and then enter the interior of the gas-liquid separator 201 with the water flow from bottom to top. Due to the large internal volume of the gas-liquid separator 201, the hot water and high-temperature gas are separated. The high-temperature gas is discharged to the outside through the high-temperature gas discharge valve 202 for reuse, while the hot water discharge valve 203 discharges the hot water in the lower layer for reuse, which greatly improves the efficiency of waste heat recovery and reuse of the hot air in the glass annealing furnace.

[0029] Example 2

[0030] Based on Embodiment 1, as shown in Figures 1-5, a hot air collection hood 301 is provided in front of the frame 101, and the hot air collection hood 301 is fixedly and sealed to the front end face of the frame 101; a high-temperature resistant fan 302 is provided inside the front end face of the hot air collection hood 301.

[0031] The high-temperature fan 302 draws hot air from the glass annealing furnace into the hot air collection hood 301, thereby effectively improving the heat collection efficiency and concentrating the hot air onto the finned heat exchange tube 102 to improve the waste heat recovery efficiency.

Claims

1. A mechanism for effectively utilizing hot air in a glass annealing furnace, comprising a heat recovery assembly (1), characterized in that: It also includes a water-air separation component (2) and a hot air collection component (3); the front end of the heat recovery component (1) is provided with a hot air collection component (3); the upper end of the heat recovery component (1) is provided with a water-air separation component (2); the heat recovery component (1) includes a frame (101), a finned heat exchange tube (102), a water pipe base (103), and a hot water return pipe (104); the water-air separation component (2) includes a gas-liquid separation tank (201), a high-temperature gas discharge valve (202), and a hot water discharge valve (203); the hot air collection component (3) includes a hot air collection hood (301) and a high-temperature resistant fan (302).

2. The glass annealing lehr hot air utilization mechanism of claim 1, wherein: The frame (101) is equipped with a finned heat exchange tube (102); both the upper and lower ends of the finned heat exchange tube (102) are equipped with water pipe bases (103), and the water pipe bases (103) are connected to the internal pipelines of the finned heat exchange tube (102).

3. The glass annealing lehr hot air effective utilization mechanism according to claim 2, characterized by: A hot water return pipe (104) is provided at the upper end of the water pipe base (103) above, and the hot water return pipe (104) is connected to the water pipe base (103) above.

4. The glass annealing lehr hot air utilization mechanism of claim 1, wherein: A gas-liquid separator (201) is provided at the upper end of the frame (101), and the gas-liquid separator (201) is connected to the hot water return pipe (104) by a pipeline.

5. The mechanism for effectively utilizing hot air in a glass annealing furnace according to claim 2, characterized in that: A cold water inlet valve is provided on one side of the water pipe base (103) below.

6. The glass annealing lehr hot air utilization mechanism of claim 1, wherein: A hot air collection hood (301) is provided in front of the frame (101), and the hot air collection hood (301) is fixedly sealed to the front end face of the frame (101); a high temperature resistant fan (302) is provided inside the front end face of the hot air collection hood (301).

7. The glass annealing lehr hot air utilization mechanism of claim 4, wherein: A high-temperature gas discharge valve (202) is provided on one side of the gas-liquid separator (201); a hot water discharge valve (203) is provided below the high-temperature gas discharge valve (202), and both the high-temperature gas discharge valve (202) and the hot water discharge valve (203) are connected to the interior of the gas-liquid separator (201).

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